TO 



WILLIAM B. CARPENTER, ESQ., 



M.D., F.E.S., F.L.S., F.G.S., &o. &c., 



KEGISTEAK OF THE TTSIYEESITT OP LONDON, 



AND ADTHOR OF 



" HUMAN PHYSIOLOeT," " COMPARATIVE PHYSIOLOGY," AND 



MANY OTHEE VALUABLE CONTRIBUTIONS TO OUR 



SCIENTIPIC LITERATURE, 



THE FOLLOWING WOEK 



IS, WITH PERMISSION, RESPECTFULLY DEDICATED BY 



THE AUTHOR. 



